Paignton Library STEM Group

Hardware freedom day 2024

HFD is a global celebration of Free and Open Source Hardware (FOSH). Our mission for this celebration is to enlighten the public worldwide about the advantages of using high-quality FOSH in education, government, at home and in business — essentially, for all conceivable applications! The non-profit group Hardware Freedom International spearheads HFD on an international scale, offering resources, giveaways and a platform for collaboration. However, it's the volunteer teams across the globe that tailor the local HFD events to make a lasting impact within their communities.

This year hardware freedom day takes place on April 20, 2024

https://digitalfreedoms.org/hfd


#PaigntonLibraryStemGroup,#Science.#Technology,#Engineering,#Mathematics

DNA Base Models

So to carry on with my project to build molecular models. I have built the 4 main base molecules associated with DNA

dna structure infographic

So the following is are based on the structures in the above infographic

Adenine

cytosine

guanine

thymine

Note:I ran out of 3 bond nitrogens while building these, so at least one has a 4 bond nitrogen, so this explains if there is what looks like a stray bond.

I have now built a DNA model from popsicle sticks, cardboard, string and glue. The bases are colour coded and labelled, to match the molecule models they represent.

dna model

Links

#DNA,#Structure,#Thymine,#Guanine,#Cytosine,#Adenine


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Water Security Issues for Lithium Mining in Chile

Lithium is used to make electric car batteries, the apparent 'environmentally friendly' alternative to cars using Petrol or Diesel,. which of course comes from crude oil.

This article looks at the environmental impact of extracting Lithium from the ground. I have posted similar articles previously as the procerss uses significant amounts of ground water, which has an impact on both people and the environment.

Links

Tags

#Mining,#Tech,#Lithium,#GroundWater,#Environment


#PaigntonLibraryStemGroup,#Science.#Technology,#Engineering,#Mathematics

Academics on Mastodon

As the Fediverse expands, there are more and more people within academia creating accounts, especially on Mastodon.

Academics on mastodon

This is an excellent resource to find people, journals, articles, pre-print and other material, as well as academic institutions. Great to see Plymouth University on there too. Academics on Mastodon

There is also:-

Tags

#Mastodon,#Academics,#Academia,#Fediverse,#Links


#PaigntonLibraryStemGroup,#Science.#Technology,#Engineering,#Mathematics

Life on Venus?

Life on Venus? MIT’s “Absolutely Surprising” Discovery of Amino Acid Stability

Interesting article and this seems to follow on nicely from the Di Methyl Sulfide discovery a while back.

Not sure what sort of life would exist on Venus, or perhaps may do at a later date in the future but the discovery of basic building blocks, esp of Amino Acids is important and may help us look for life on other planets & moons in the solar system or exo-planets and exo-moons around other stars.

You can read more about this here

Tags

#Venus,#Discovery,#AminoAcid,#Stable,#AstroChemistry,#Chemistry,#BioChemistry


#PaigntonLibraryStemGroup,#Science.#Technology,#Engineering,#Mathematics

Dark stars

'Dark stars': Dark matter may form exploding stars, and observing the damage could help reveal what it's made of

More research into Dark Stars. In this instance, the research is looking at whether exploding stars are linked to the formation of Dark matter.

Tags

#Science,#Astronomy,#Physics,#Wimps,#DarkMatter,#Stars,


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STEM Group 13th April 2024

The next Stem group event will take place on :

Date: Saturday, April 13th 2024 Time: 10:30am to 15:00 Location: Paignton Library and Information Centre Room: 12 & IT Learning Centre

What is planned?

  • Lineage OS

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This Is How the Body’s Building Blocks Are Made

Interesting article from SciTechDaily on how some of the human bodies basic building blocks are made. These are the proteins that make up other more complex components of the human body, This is linked to research into how ribosomes work

Molecular Majesty: This Is How the Body’s Building Blocks Are Made

Tags

#Science,#Ribosome,#Biology,#Chemistry,#BioChemistry


#PaigntonLibraryStemGroup,#Science.#Technology,#Engineering,#Mathematics

Robot car 4 (updates)

I have now re-built the Robot car, using an acrylic sheet material for the chassis, different wheels and also used hot glue to secure everything together more securely.

R car 3

The other difference is that I also used hot glue to put this together.

R car 4

The micro:bit car is also now working. Only using some basic example code at the moment.,

R car 4


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